Always moved by religious motives, the Church has condemned the various forms of Marxist Socialism; and she condemns them today, because it is her permanent right and duty to safeguard men from currents of thought and influence that jeopardize their eternal salvation.
Pope Pius XIIf our age in its pride laughs at and rejects Our Lady's Rosary, a countless legion of the most saintly men of every age and of every condition have not only held it most dear and have most piously recited it but have also used it at all times as a most powerful weapon to overcome the devil, to preserve the purity of their lives, to acquire virtue more zealously, in a word, to promote peace among men.
Pope Pius XIMan cannot be exempted from his divinely-imposed obligations toward civil society, and the representatives of authority have the right to coerce him when he refuses without reason to do his duty. Society, on the other hand, cannot defraud man of his God-granted right... Nor can society systematically void these rights by making their use impossible.
Pope Pius XIFor them (the peoples of the Soviet Union) We cherish the warmest paternal affection. We are well aware that not a few of them groan beneath the yoke imposed on them by men who in very large part are strangers to the real interests of the country. We recognize that many others were deceived by fallacious hopes. We blame only the system with its authors and abettors who considered Russia the best field for experimenting with a plan elaborated years ago, and who from there continue to spread it from one of the world to the other.
Pope Pius XIFor they have always unanimously maintained that nature, rather the Creator Himself, has given man the right of private ownership not only that individuals may be able to provide for themselves and their families but also that the goods which the Creator destined for the entire family of mankind may through this institution truly serve this purpose.
Pope Pius XIIn the present state of human society, however, We deem it advisable that the wage-contract should, when possible, be modified somewhat by a contract of partnership, as is already being tried in various ways to the no small gain both of the wage-earners and of the employers. In this way wage-earners are made sharers in some sort in the ownership, or the management, or the profits.
Pope Pius XI